aceytuni

• aceituní

Probably via unattested Late Latin sētīnus (“silken [cloth]”), from Latin sētā.^[1] Very frequently folk-etymologized to derive from Arabic زيتون (“Zayton; olive”),^[2] a calque of Quanzhou's former Chinese nickname 刺桐城 (Cìtóngchéng, “Tung Tree City”), after the trees which had been extensively planted there in the 10th century by Liu Congxiao,^[3] but the derivation is unsupported.^[1]

aceytuni

1. (obsolete) Synonym of raso: satin
   • 1641, Gerónimo de Blancas, Coronaciones de los serenissimos reyes de Aragon‎^[1]:

     […] e otra de aceytuni carmesi, e las bocas de las mangas con vnas trenzas de oro, anchas encima brosladas con aljofar […]

     (please add an English translation of this quotation)

1. 1878, Henry Yule, "Chinchew" in the Encyclopædia Britannica, 9th ed., Vol. V, p. 673:

   Ibn Batuta informs us that a rich silk texture made here was called Zaitûniya; and there can be little doubt that this is the real origin of our word Satin,—Zettani in mediæval Italian, Aceytuni in Spanish.